Mineral insulated RTD cable with copper conductors is a common choice for temperature measurements up to 400°C. Copper conductors have a very stable resistance vs temperature relation. Furthermore, the material is economically priced. These cables are available in the following sheath materials;
Furthermore Okazaki mineral insulated RTD cable with copper conductors are;
| OD (mm) | Tolerance (mm) | Wall thickness (mm) | Conductor diameter (mm) | Distance between wires (mm) | Resistance (Ω/m) | m/Coil |
|---|---|---|---|---|---|---|
| 9.00 | +/- 0.05 | 0.90 | 0.90 | 3.10 | 0.50 | 20 |
| 8.00 | +/- 0.05 | 0.80 | 0.80 | 2.70 | 0.50 | 25 |
| 6.40 | +/- 0.05 | 0.64 | 0.64 | 2.20 | 0.50 | 39 |
| 6.00 | +/- 0.05 | 0.60 | 0.55 | 2.08 | 0.50 | 45 |
| 4.80 | +/- 0.05 | 0.48 | 0.48 | 1.70 | 0.70 | 70 |
| 4.50 | +/- 0.05 | 0.45 | 0.40 | 1.65 | 0.70 | 80 |
| 3.20 | +/- 0.05 | 0.32 | 0.32 | 1.00 | 1.40 | 159 |
| 3.00 | +/- 0.05 | 0.30 | 0.26 | 1.00 | 1.40 | 181 |
| OD (mm) | Tolerance (mm) | Wall thickness (mm) | Conductor diameter (mm) | Distance between wires (mm) | Resistance (Ω/m) | m/Coil |
|---|---|---|---|---|---|---|
| 12.70 | +/- 0.05 | 1.27 | 1.90 | 0.70 | 0.15 | 20 |
| 9.00 | +/- 0.05 | 0.90 | 1.35 | 0.70 | 0.20 | 40 |
| 8.00 | +/- 0.05 | 0.80 | 1.20 | 0.13 | 0.25 | 51 |
| 6.40 | +/- 0.05 | 0.64 | 0.96 | 0.16 | 0.35 | 80 |
| 6.00 | +/- 0.05 | 0.60 | 0.90 | 0.20 | 0.42 | 91 |
| 4.80 | +/- 0.05 | 0.48 | 0.74 | 0.28 | 0.65 | 142 |
| 4.50 | +/- 0.05 | 0.45 | 0.67 | 0.35 | 0.75 | 162 |
| 3.20 | +/- 0.05 | 0.32 | 0.48 | 0.50 | 1.47 | 166 |
| 3.00 | +/- 0.05 | 0.30 | 0.45 | 0.60 | 1.70 | 189 |
